Scrivener - Scrivener is a content-generation tool for composing and structuring documents.
Emphatic by Connect365 - Custom social media marketing on automation
Celtx - Celtx is a scriptwriting software platform with applications in a wide range of mediums but that specializes in helping screenwriters.
Buffer for Instagram - Plan, track, and analyze your Instagram marketing
Trelby - The free, multiplatform, feature-rich screenwriting program!
CORA for iOS - Manage your social media automatically